Window ventilator



March 12, 1940. H. c. HUEGLIN i 2,193,284

WINDOW VENTILATOR Filed Sept. 6, 1938 2 Sheets-Sheet l azi@ 92 E l (Wy/,/9 j v l /gg 2 Y A E lha/War l zd Hfe/72a?? HMQZf/z QQ l f March l2,1940. H. c. HUEGLIN WINDOW VENTILATOR FilQd Sept. 6, 1938 2 Sheets-Sheet2 Inf/miran Herma/2 Huyfz Patented Man 12, 1949 ,t

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UNITED STATES PATENT i orties WINDOW VENTILATOR Herman C. Hueglin,Chicago, Ill., assigner to Airmaster Corporation, Chicago, Ill.,` acorporation of Illinois Application September 6, 1938, SerialNo. 228,542

4 Claims. i (Cl. 98--94) tions, requires a more or less permanentmount-,;

ing of the ian orpermanent fittings to receive and ysupport the unit.Moreover,` the panel at the upper part of the window to receive the fanframe was generally formed of plywood or other material which shut outan` appreciable amount of light from the kitchen.

The object and general nature of this inven- "tion is the provision of aWindow ventilator of the glass panel type whichis particularlyconstructed to be mounted at the lower part of a window and arrangedwith adjustable sections of glass which make it possibleto adjust theventilator to different sizes of windows with minimum obstruction-oflight and without requiring permanent iittings` or attachments It isalso a feature of this invention tosoconstruct and arrange theadjustable glass sections and the fan frame or housing that'the fan maybe placed at either side of the window merely by detaching the'adjustable sections from one side of the housing andfattaching them `tothe other side. It is also a feature of this invention to provide for aswitch or rheostat control which may be placed at either side of thefanhousng so as to accommodate the optional disposition of the latter ateither side of the window, as desired. There are many situations inwhich the stove is near afwindow, in which case it would be desirable tomount the kitchen fan at the side of the window nearer the stove,thereby exhausting the heat and cooking odors Ydirectly from the stove.Thusit is possible `to remove more of the-vapors, odors, and heat thanwould be the case if the fan unit were mounted in the upper part ofthewindow. i

, of the window frame grooves in which the lower wisefconstructed sothat their vertical dimension 2, and 3, my new and improved windowventilator sash slides, while the outer of the eatensible glass panelsis adapted to be extend-ed into the `groove at the opposite side ofthewindow frame,

where the unit is retained in place. A further feature 'of my inventionin this connection is the provision of adjustableslides or-panels, the

inner of which is attached to the fan casing and the other of which hasa grooved connection therewith, and provided with anges or otherl0 issubstantially the same'as the fan casing itself,` whereby afterthe unitis in place and the sash lowered, the lower edge of ythe latter tssubstantially .against the upper margins of the y fan casing andadjustable panels. 15

These and other objectsand advantages `of `my invention will be apparentfrom the following detailed description of the preferred form,illustrated in the accompanying drawings.

In the'drawings: 2

Figure 1 is an elevational View oigmy improved window Ventilator,` takenfrom the kitchen side, and `showing how the lower `sash closes snuglyagainst the upper edge of the unit;

Figure 2 is a section taken along the line '2 2 2 .t of Figure 1;

Figure 3iis a section taken generally along the line 3-3 of Figures 1and 2, certain parts ofthe extensible panels being removed in order Y toshow the manner in which the inner `bar of 3 the inner panel sectionisxed to the side of the fan casing; l i

Figure 4 `is an enlarged fragmentary section taken along the `line 4-4of Figure l1; showing the manner of constructing the panel frames toaccommodate their relative movement in adjusting aunit for windows ofvarious widths;

Figures 5 and 6 are fragmentary perspective views showing indisassembled relation the manner in which the inner and outer panelframes are constructedy t Figure 7 is a fragmentary perspective View ofthe fan casing, with the motor, fan, motorsupportand'grille` removed; 1i Figure 8 is a view similar to Figure l but showing vthe windowventilator arranged so that the fan is disposed at the other side of theWindow; andi t Figure 9 isa fragmentary viewshowing a modied forni`ofirame for the innerglass panel section.

Referring now more particularly to Figures l,

isindicated in zits Aentirety by the reference numeral land is shown asmounted in a windowE.

The latter includes a window frame 3 of which the sill is indicated at land vsuitable strips 5` form grooves E and 'I in the window frame whichreceive, respectively, the upper and lower sashes, 5 the lower sashbeing indicated in Figure l by the reference numeral 8.

My new and improved window ventilator comprises a generally rectangularcasing lll, best indicated in Figure 7, and which includes upper andlower walls II and l2 and side walls I3 and I4. One face of the casingl0 is open, as Vat I5, and the other face is closed partially by a plateI6 in which there is a circular opening Il. Preferably the walls II, l2,i3, and lll are-formed by bending a strip of metal into the desiredshape,

bringing the ends together to forno the shell 0f the casing and thenwelding or otherwise fastening the ends together. `The plate i6 isformed with upper and lower edges 2l which are bent at right angles tothe plane of the plate and serve as attaching anges by which the plateiii may be welded or otherwise fastened to the walls II and I2. At 'thesides between the attaching flanges 2 I, the plate I 6 carries laterallyextending 25 flanges 24 and 25, either of which, as will be explainedmore in detail later, is adapted to be disposed in one of the sashreceiving grooves I of the window. It will be noted that the verticaldimension of the flanges 2t and 25 correspends to the vertical height ofthe casing I0'.

vThe Ventilating fan is indicated at 3) and is mounted in any suitablemanner on the shaft of an electric motor Ill which is supported on a`bracket 32 fixed in any suitable manner vto the bottom wall I2 ofthecasing lll, as byscrews or the like passing upwardly through holes33( (Figure 7) in the vwall l?. and threaded vinto the bracket. The fan3l! is positioned so as to run closely adjacent the circular opening I'l in the 40 plate i6. An ornamental grille 34, provided with a centralopening 35, is placed in the opening |51` of the fan casing Ill, and issecured in place in any suitable manner, as by bolts 36, the inner ends.of which are connected to small clips or 5 brackets 3l xed to the sideWalls of the casing.. The lower fastening member 36a (Figure l) for vthegrille 34 preferably passes directly into a tapped hole in the bracket32.

Preferably, the motor 3l is controlled by means 0 of a switch andrheostat unit indicated in its env tirety in Figure l by the referencenumeral 4l), the connections from the motor 3l `to the switch unit 40being indicated in Figure 2 bythe reference numeral M. The unit lillincludes a lid or cover 43 which is fastened to thefcasing 44 by screwsa5. The switch and associated mechanism is carried by the cover A3, andthe handle 48 forming a part of the control unit and its mechanismpro-vides for starting and stopping the motor 3l and voperating it atthe desired speed. The casing 441 is securedto the casing Il] by meansof tour bolts 50, two of which appear in Figure 3, the bolts 5U beinginserted in corresponding holes 5I (Figure '7) which are formed in theside. walls I3y and I4, .thereby providing for mounting the unit 40 ateither side of the fan casing. Also, each side wall I3 and I4 of the fancasing is provided with an opening receiving an insulating thimble 52through which the connections 4I pass.

A panel, indicated in its entirety by the reference numeral t9, isfastened to one side of the fan casing lll and has the same verticalheight, as best shown. in Figure 1, so as to fill the space across thewindow when the ventilator is installed in place. Preferably, the panelt5 consists of two panel sections, indicated at 6| and 62, the innersection being fixed to one side of the fan casing and the other sectionbeing slid able with respect to the fixed section, whereby the effectivelength of the panel til may be adjusted to correspond to windows ofvarious widths.

The innerpanel section 6i consists of a frame Gli and a pane of glass$5. The construction of the frame G4 is best shown in Figure 5. Theframe 5d consists of upper and lower rails 6l and. t3, respectively(Figure l), and end rails 69 and 7B. As best shown in Figures 4 and 5,the upper and lower rails 6T and E33 are substantially identical, exceptthat they are rights and lefts. Each includes a pair of anges 'iEforming a. glass receiving groove or channel 'I3 therebetween, andanother flange l@ spaced laterally from the central iiange I2 vby aspace that forms a groove 15.

The ends of the channel or groove 'I3 are closed, as at 'il and'l5,-respectvely, and each end is tapped, as indicatedat T9. Theinner-vertical rail 59 ofthe inner panel section 5I is also in the formof a channel, having flanges 82 and 83 between which is a groove orchannel 84. The

upper and lower ends oi the rail 'IS are extended laterally to formshort attaching flanges S6 and B1. These attaching flanges areapertured, as at ile, to receive screws which thread into the tappedopenings 79 to fasten theV upper and lower rails 5l and di? to the innerrail 69. Also, the

vvattaching flanges 8E are provided with pairs of openings 9i to receivebolts 92 which pass through openings S3 formed in each of the side wallsI3 and i4 of the fan casing lll. The screws that thread into the tappedopenings 'I9 preferably have countersunk-heads so that the vertical railB9 may be disposed snugly against either side wall of the fan casingwhen the bolts 92 are tightened. The outer vertical rail 'lil is alsovof channel section, having anges Eil and 38 which form a channel orgroove 99 therebetween. The flanges 3'? and 9S are terminated inwardlyof the end 0i the rail le, as best shown in Figure 5, so as to leaveaproiecting lug itl which is apertured, as at it, to receive a screwwhich is adapted to be threaded into a tapped opening 'lf3 formed in theouter end of the lower rails St. The upper end of the rail l0 is of thesame construction. 1,;

Thus, after the pane oi glass has been inserted in the grooves orchannels of the various rails, together with any suitable packingnecessary or desirable, the attaching screws may be tightened and thepanel frame clamped rigidly about the g glass pane. After inserting thebolts $2 in the set of openings t3 in whichever one ofthe side walls i3and Ul to which itis desired to attach ie panel section, tightening thebolts 52 secures panel section 5i rigidly and :firmly in position withie upper and lower edges of the panel section substantially coincidingwith the' planes ol` the upper and lower walls li and l2 ci the iancasing I0.

The outcrpanel section 62 comprises a frame l lil, which is similar tothat just described, and

a glass pane IH. The frame l consists ci upper and lower rails I I2 andH3 each of which, as 4bestshown'in Figure 6, has a pair of flanges H6and II'I between which a glass receiving groove or channel H8 is formed.The ends of the groove IIB are closed, as at H5 and i129, and each endof the rails H2 and H3 is provided with a tappedv hole I2 l. The outeredge of each of the .rails H2 rand H3 is provided with an additionalpair of flanges |23 and |24. `The end rails of the panel section 52 arepractically identi- Cal with the outer vertical rail 'Hi of the innerpanel section 6|, and is indicated by the reference numeral |26. Eachrail |26 4has a pair of iianges |27 arranged to embracethe edges of thepane of glass and both ends of each rail are provided with lugs |28which are apertured at |29 to receive screws which thread into theopenings 2| in the upper and lower rails ||2 and ||3 to secure the frametogether.

Mention was made above of the fact that the outer panel section 62slides in extensible relation with respect to the inner panel section6|, and to accommodate this action, the shorter flanges |24 on ltheouter edges of the upper and lower rails ||2 and H3 are `arranged to bedisposed `in the grooves 'I5 on the upper and lower rails 6T and 68,respectively, of the inner panel section 6|, the outer andlonger fianges|23 being disposed alongside the flange 14, the flanges |23 being sodimensioned that the overall width of the outer or extensible panelsection |52 is sub.- stantially the same as the corresponding dimensionof the inner panel section. As a result of this construction, when theventilator unit is in place in a window and the lower sash lowered untilit comes into contact with the fan casing |01, the lower face is also insubstantial contact with the panel sections 6| and 62 in whateveradjusted position they may be disposed with respect to each other.

It will be noted from the above description i that the window ventilatorof my invention does not require any means for its permanent attachmentto the window. When it is desired to 4install and use `the ventilator,the lower sash is raised, and then with the extensible panel 62 pushedinwardly of the inner panel El the unit is lifted and placed on thewindow sill with flange 24 disposed in the groove at one side of thewindow frame in which the lower sash slides. The outer sash panel B2 isthen extended until its outer edge is disposed in the other groove atthe opposite side of the window. The lower sash is then lowered until itcomes into contact with the casing and the upper edges of both ofthepanel sections 5| and E2. After plugging in a connection for the motor,the fan may be operated at will by suitably manipulating the button 48.Even though one of the sections of the panel 60 slides within the other,the flanges |23 on the slidable section make it possible to secure assnug a fit when the sash is lowered as if the ventilator was especiallydesigned for that particular window. Since the unit is not permanentlyfixed in position, it may be removed quickly and easily at any timedesired.

The fan casing shown and associated parts are particularly constructedto permit the panel 6B being disposed at either side, and, in order tochange the panel from one side to the other, all that it is necessary todo is to remove the switch cover 43, detach the four bolts 50 holdingthe switch unit in place, detach the connections `4| from the motor andextend them out through the other thimble 52 at the other side of 'thefan casing, remove the bolts 9| and transfer the panel unit to the otherside, inserting the bolts 92 through the holes 93 at the other side ofthe casing I0. Figure 8 shows the parts reversed, as compared withFigure 1, and the fan disposed at the right side of the Window.Preferably, although not necessarily, the fan casing ||lis provided witha plurality of feet |3| so that when the unit is set on a window sillthe latter is not marred. 1

A slightly different form of panel frame for` the inner panel section isfragmentarily indicated in Figure 9. In this form, the frame Elaincludes an innerrail E9a,ihaving parallel iianges 82a and` 12a and 14a,as in Figure 5, and ears |31 which are apertured at |38. The lugs |35 attheiends of the rail G9a. are disposed inwardly of the rail and arespaced apart to receive the flanges 12a when the ears |31 are disposedagainst the lugs |35.' The latter are tapped, as at |39, andreceivescrews which pass through the openings |38. This construction issomewhat stronger than the construction shown in Figure 5.

. While I have shown and described above the preferred structure inwhich the principles of the present invention have been embodied, it isto be understood that my invention is not to be limited to the specificdetails shown and described above, but that, in fact, widely differentmeans may be employed in the practice of the broader aspects of myinvention.

What I claim, therefore, and desire to secure by Letters Patent is:

1.- A window ventilator adapted for lower window mounting comprising afan casing having an ornamental grille closing one side of the casingand having a central opening receiving the motor, the other side of saidcasing having an opening adjacent which the fan driven by said `motor isdisposed, anges extending laterally from opposite sides of the casingadjacent the space at which the ian is disposed, a pair of glazedextension panels, each including a frame, one of said frames havinggrooves along its upper and lower edges and the other frame havingflanges along its upper` and lower edges arranged for sliding movementin the grooves in the other panel, additional flanges carried by saidother panel so that its vertical width is substantially the same as saidone panel and the width of both panels is equal to the correspondingdimension of said fan casing, and detachable securing means forfastening said one panel at its inner end to either side of said fancasing optionally, whereby the ventilator may be installed below thelower sash of a window by setting the fan casing on the window sill withone iiange in the sash receiving groove of the window frame and theouter end of the extensible panel disposed in the opposite sashreceiving groove of the window frame.

2. A portable and adjustable window ventilator comprising a fan casing,means on said casing adapted to engage in a sash receiving groove at oneside of the window frame, and a pair of extensible panels at `the otherside ci said casing and of substantially the same width as thecorresponding dimension of the fan casing, each of said panels includinga frame and one of said frames having grooves along its upper and loweredges and the other frame having flanges along its upper and lower edgesarranged for sliding movement in the grooves in the other panel,additional anges carried by said other panel so that `its vertical Widthis substantially the same as said one panel and the width of both panelsis substantially equal to the corresponding dimension of said fancasing, whereby when the outer end on the outer panel is disposed in thesash receiving groove at the side of the window frame opposite'the sashreceiving groove in which said means is disposed, the associated windowsash may be moved in said grooves into Contact simultaneously with thefan casing and the edges of both of said panels.

3, A motor driven window ventilator adapted for lower Window mountingcomprising a fan casing having an opening adjacent which the ian drivenby said motor is disposed, flanges extending laterally from oppositesides of the casing adjacent the space at which the fan is disposed, apair of glazed extension panels, each including a frame, one of saidframes having grooves along its upper and lower edges and the otherframe having flanges along its upper and lower edges arranged forsliding 'movement in the grooves in the other panel, additional flangescarried by said other panel so that its vertical width is substantiallythe same as said one panel and the width of both panels is equal to thecorresponding dimension of said fan casing, and detachable securingmeans for fastening said one panel at its inner end to either side ofsaid fan casing optionally, whereby the ventilator may be installedbelow the lower sash of a window by setting the fan casing on the windowsill with one flange in the sash receiving groove of the Window frameand the outer end of the extensible panel disposed in the opposite sashreceiving groove of the Window frame.

' 4. A ventilator as dened in claim 3, further characterised by controlmeans for said motor detachably mounted on the side wall of said casingadjacent said extension panels, both side Walls of said fan casinghaving means receiving said control means, whereby the latter may beoptionally disposed on either side Wall of the casing to accommodatepositioning the extension panels at either side of the casingoptionally.

HERMAN C. HUEGLIN.

